If you need a completely free video editor with Luma Key:
[Insert download link]
The Luma Key effect is a built-in feature of Adobe Premiere Pro. This means that if you have a valid subscription to Creative Cloud and have Premiere Pro installed, you already have access to the Luma Key effect at no additional cost. There is no separate "free download" for the Luma Key effect itself, as it is an integral part of the software. Searching for "Luma Key Premiere Pro Free Download" luma key premiere pro free download